Current-tap socket



Oa. 6,1925g M. HERSKOVITZ CURRENT TAP socxrzfrA Filed June'28, 1923 Patented Oct. 6, 1925.

v,UNITED STATES PArEN-Tl oFFIcE.

MAX IIERsxovITz, or CHICAGO, ILLINOIS, AssIGNoR To PEERLEss LIGHT COMPANY,

F CHICAGO, ILLINOIS, A CORPORATION OFMAINE.

CURRENT-TAP SOCKET.

Application led June 28, 1923. Serial No. 648,227.l

To Aall 'whom t may concern: v

" Be 'it' known'that I, MAX HERSKCVITZ, a citizen of the Ilnited States, residing at Chicago, inthe county of Cook and State of Illinois, have invented a new and useful Improvement in Current-Tap Sockets, of

which thefollowing is a specification.

"My invention relates, more particularly, to'current-,tap sockets adapted for the attachmentthereto of a plurality of plugs, one of fwhich'is of the push typeas distinguished from the more common formk of .p 'threaded plug; l

20 i my improved socket.

Q view thereof. Figure My primary object is to provide a novel,

simple and inexpensive construction of socket and one which shall be very strong and durable and present the desired appearance.

vReferring to the accompanying drawing:`

lTheparticular construction shown comformed of relatively thin metal, with its o posite endsfspirally corrugated to form t er` threaded portions vv7 and 8, the portions 7y prises va tubular member 6 preferably constituting a plug portion at 'which the )socket is adapted to screw into an ordinary threaded electric socket, the threaded porytion 8 of the tube 6 constituting a threaded socketl to receive an ordinary electric kscrew confined, this disc bearing at an ,annular plug. Tlie'plug portion 7 is ap'ertured' at' its end wall, as representedvat 9, in which' aperture a Adisc 10 of insulating material is flange 11 thereon, against the outer face of thev said end wall. The disc 10 is provided centrally witha metallic lrivet 12 which constitutes the center contactof the plug portion ofthe socket structure, the other contact thereof being' the shell 6. The socket portion 8 contains a. disc 13 of currentinsulating material which seats against lugs 1e extending' inwardly from the tube 6 and preferably formed by indenting the side Wall thereof. The disc 13 carries the center Contact 15 of the screwV socketof thestructure, this center Acontact being shown asV disc, its extremitcy 'spectively, as shown in Fig. 3,

comprises a. push plug, thisfsocket member being repre- Figure 2is a plan.

formed of a stripof metal 16 connected at one endwvith the rivet 12v andextending, at its opposite end, through a sl'ot17 in the disc 13, thence acrossy the outer face ofthe i being formed with the rearwardly-exten ing tends into another slot 19 in the disc 13, the strip 16 being so proportioned and arranged that the discs 10 and 13 will be rigidly-held against the end wall of the plug portion 7 of the `device and against the lugs 14, re-

it being noted that the two center contacts'12'and 15 are electrically'connected together through the medium ofthel strip p16.' The device also socket member .for receiving` a sented at 20 and 'formed ofa body lof insulatingmaterial containing'slots 21 extending therethrough. The member 20 is formed at its inner face with asubstantially rectangular boss 22 which projects into and through 'a similarly shaped opening 23. in the sidewall ofthe member 6 between the threaded portions 7 and 8 of the latter. The member 2O contains. a central opening 24 Ithereinfor receiving a screw 25 which passes through an opening 26'in a block 27 of insulating material hereinafter referred Yto, and screws into a threaded opening 28 in the strip 16. The contacts forthe push socket are representedat 29 and 30, Vthe ContactY 29lfl'being preferably formed of metal to provide a vcurved portion 31 .terminating in a flange 32, the member 29 being rigidly secured, as, for example, by soldering it, to the wall of the opening 23 in the tube 6. The member 31 loops. into the interiorof the .tube 6 through the opening 23, as shown, land its free, resilient, extremity extends outwardly in the slot 21 of the member 20. The ,ContactA member is secured, at a `lange33 thereon,to the strip 16, as by a rivetV 34, thereby' electrically connecting `the contact v30 withthis strip, and itsjfree.

extremity 35 extends outwardly in the slot 21 in the member 20. l Y f The block 27 extends vat its ends in di- ,vametrically-opposed slots 36 'in the sidewall yportion 18 which eX- facture, and very durable,

flanges closely l flanges 38` at the leftV hand end of Fig. 2,

- fastening devices,

, plying the screw' 25;

lcenter contact strip, 16. l

shown, that the block 27 whichlflatwise engages the strip 16, as shown, bears at a side wall thereof against the inner facel of the disc-13: c

The tubular member 6- is surrounded, ex-

cept for the plug end 7 thereof, by a housing portion, as represented at'39, to receive the member Asw'i -lbe noted, the outer end portion of the member 2 0is of greater width than the portion 22whereby this portion of greater width, andrepresented at 10, extends intooverlapping relation to lthe ends ofthe flanges 3 8jladj acent the vmemb r 2.0,'- the latter containing radially-disposed slots 11 into which these endportions of the flangesf38 extendin the assembled'position ofthe parts, the member tO'thus operating y together. If desired,vr the mayy be connectedV togetherby any suitable as by the rivetsv represented at Ll2.

In the constructing of the device, it is ypreferred that the strip 16, discs-'10 and 13 and, tube 7 be first `assembled to thelposition position, and thereafter the-housing 37 applied to encirclingpositi'on on"Y the tube 6.

The member. 20;x isthen applieY tion. showny and4 rigidly`A held? in place byV ap- Itl willbe understood from the foregoing that the structure providedis very simple, economical of manublock 27 not'.` only serving, to augment therigidity afforded by v serving to' insulate the contact 29 from the,V

Tlie'blockv 27 forms a support for'the contact 29 bracing it`v against undue displacement in the inserting of the contacts of a plug into the openings with the contacts aaai-1d' e5.

While I have illustrated: and described aV particular construction e "bodying my invention, I dol not wish to be understood as intending to limit it thereto as the same may be variously modified and altered without departing from the spirit of my invention.

What I claim as new, and desire to secure byJ Letters Patent', is

1'. device of the character described comprising a' tubular' member provided at its oppositeend's with contacts, a strip member extending lengthwise of said tubular' member and connecting' together certain of said contacts, said' tubular member contain-k ing opening's'in its side wall, and a block of itsl opposite to hold the Y d to the posi` .said block' the insulating the'other part-sV but" also 21 forl engagement insulating material extendingcr'osswise of said tubular member in' a' plane parallel with said strip member, and extending at its ends into saidlopenings. c, .Y

2'.' A device ofthecha'r'acter described comprising a tubular member provided at its opposite'ends with contacts, members of insulating material located adjacent the ends of'saidtnbular'member, certain of said contacts being provided on said members of insulating material, a strip'connectingsaidlast referred to contacts together and holding said members ofl insulating.material in" a'ssembled position, .Y saidx tubular memberv containing openings in its side Vvvall,= andv a block of insulating materialopposing said strip and extendingV at its endsfinto said openings.Y s

3. A: device of'the character described comprising a tubular' iiiein'ler1uneagde-f1' at ends 'to afford a' screw plug, a screw' socket, respectively, 'discslfof insulating material enga-gingy saidy tubular member andy held against movement toward y,

each other, centervv contacts carried by' said' discs, `astrip member' connecting fsaidfcent'er contacts together and holding said discs against movement in a direction away'f-rom each other, the member containing slets and an opening located" between said slets, a block of insulating niateri'alE extend- Y ing crosswise .6 of saidtubular member" and opposing said' strip, with its' endsl in said slots, -a soclret member lo'cated at' said opening in said tubla-rmember, a' screw engaging 'said' socketine'mber and'passingthr'ough and screwingilt'o' said strip, and contact members' electrically' connected'l with said tubular member andI withsaid' strip', extending into said socket' member;

11.1K device ofL the character" described comprising a member provided: withV electric contacts certain ofV which extend laterally, a' housing surrounding said" member" and' open along its side, withA its'opposed edges outwardly liz'inged', said housing 'containing an opening in registration withV said laterally' extending contacts, and a' plug col-operat-` ing' with said' last referredl to` cont-acts andl containing slotsv intov which the flanges on saidhousing extend'.

5; device' ofy the character described comprisingv a tubular member containing openings in its side wall and provided with current-conducting' members certain of which are connected vtogether by a strip which extends lengthwise of said member, the side wall of said member containing'l an opening, a socket member' located at said opening, a securing device engaging said member and said strip, and' a block located in, andA extending cr'osswise of, said member' and" supported'l at its ends by the latter,y said block being interposed between' said strip and said side wall ofl said tubular diametrically opposed" socket member and against which said strip is drawn in the tightening up of said fastening devices.

6. A device of the character described comprising an integral tubular member threaded at its opposite ends, said member containing an opening in its side Wall between said threads, a member of insulating material located adjacent said opening and containing slots, and contacts extending into a position to be engaged by the contacts of a push plug inserted into said slots.

7. A device of the character described comprising a tubular member threaded at its opposite ends, center contacts at the ends of said member and connected together, said tubular member containing an opening in its side wall, a member of insulating material located at said opening and containing slots, and contacts electrically connected with said tubular member and with said center contacts respectively, and extending into a position to be engaged by the contacts of a push plug inserted into said slots.

SQA device of the character described comprising a tubular member threaded at its opposite ends, center contacts at the ends of said member and connected together, said hollow member containing an opening in its side Wall, a member of insulating material located adjacent said opening and containing slots, contacts electrically connected with said tubular member and with said center contacts respectively, .and an insulating block located in said tubular member and interposed between the part which connects said center contacts together and the one of said contacts which is connected with said tubular member and extends adjacent one of said slots.

9. A device of the character described comprising a tubular member threaded at its opposite ends, center contacts at the ends of s-aid member and connected together, said member containing an opening in its side wall, a member of insulating material located adjacent said opening and containing slots, contacts electrically connected with said tubularmember and with said center contacts respectively, the one of said contacts which is connected with said tubular member but bent into curved form with its extremity extending adjacent one of said slots and an insulating block in said tubular member interposed between said curved part of said contact and the part which connects said center contacts together.

MAX HERSKOVITZ. 

